One of the most talked about films at Sundance 2014, Lenny Abrahamson’s bizarre dark comedy “Frank” has released its first trailer, and it’s appropriately irreverent and delightful.

The story of a frustrated songwriter (Domhnall Gleeson) brought into a noise rock group with a singer, Frank (Michael Fassbender), who wears a giant paper mache mask on his head at all times. Beneath the characters’ oddball behavior, however, lies genuine pain.